Which of the following inhibitor is used for steel in 80% pure sulfuri – McqOptions

MCQOPTIONS

1.	Which of the following inhibitor is used for steel in 80% pure sulfuric acid?
A.	2% boron trifluoride
B.	Sodium silicate
C.	Alkali metal nitrates
D.	Benzoic acid
Answer» B. Sodium silicate

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